Comfort Zone CZHVP30 HBCLCZHVP30 Industrial Fan, 30" High Velocity Pedestal, Black DURABLE CONSTRUCTION |Heavy, Wide Base for Stability - Height Adjusts from 72-Inch to 106-Inch POWERFUL | High Velocity with 2 Speed Settings SMART DESIGN |Pull Chain Switch with Pre-Drilled Holes for Floor Anchoring FEATURES | Individually Balanced Aluminum Blades - Pull Chain Switch - Can Accept Optional Casters for Portable Use